Pith Number

pith:OB5QAN64

pith:2025:OB5QAN64UTL47EVHVMOHDBYIOC

not attested not anchored not stored refs pending

Discovery of the Type-II Superconductor Ta$_4$Rh$_2$C$_{1-\delta}$ with a High Upper Critical Field

Fabian O. von Rohr, Harald O. Jeschke, Karolina Gornicka, Keyuan Ma, Sara L\'opez-Paz, Tomasz Klimczuk

arxiv:2506.02209 v1 · 2025-06-02 · cond-mat.supr-con

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OB5QAN64UTL47EVHVMOHDBYIOC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T11:14:34.432639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

707b0037dca4d7cf92a7ab1c71870870b2f31af2575f7cb9a78883230289128f

Aliases

arxiv: 2506.02209 · arxiv_version: 2506.02209v1 · doi: 10.48550/arxiv.2506.02209 · pith_short_12: OB5QAN64UTL4 · pith_short_16: OB5QAN64UTL47EVH · pith_short_8: OB5QAN64

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OB5QAN64UTL47EVHVMOHDBYIOC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 707b0037dca4d7cf92a7ab1c71870870b2f31af2575f7cb9a78883230289128f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1f10eba8e79f8d528055ccf747ac55a15a61401f274c5d1a4e6911fb64b7dc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2025-06-02T19:48:54Z",
    "title_canon_sha256": "1da083416e3164bcb65a659946c142706c461fb19a3fa751a245d894a16f31f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.02209",
    "kind": "arxiv",
    "version": 1
  }
}